ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/socket/init.C
(Generate patch)

Comparing deliantra/server/socket/init.C (file contents):
Revision 1.2 by root, Thu Aug 17 20:23:32 2006 UTC vs.
Revision 1.22 by root, Sat Dec 16 21:40:26 2006 UTC

1/*
2 * static char *rcsid_init_c =
3 * "$Id: init.C,v 1.2 2006/08/17 20:23:32 root Exp $";
4 */
5
6/* 1/*
7 CrossFire, A Multiplayer game for X-windows 2 CrossFire, A Multiplayer game for X-windows
8 3
9 Copyright (C) 2001 Mark Wedel 4 Copyright (C) 2001 Mark Wedel
10 Copyright (C) 1992 Frank Tore Johansen 5 Copyright (C) 1992 Frank Tore Johansen
… …
21 16
22 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software 18 along with this program; if not, write to the Free Software
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 20
26 The author can be reached via e-mail to crossfire-devel@real-time.com 21 The author can be reached via e-mail to <crossfire@schmorp.de>
27*/ 22*/
28 23
29/** 24/**
30 * \file 25 * \file
31 * Socket general functions 26 * Socket general functions
… …
37 * The reading of data is handled in ericserver.c 32 * The reading of data is handled in ericserver.c
38 */ 33 */
39 34
40 35
41#include <global.h> 36#include <global.h>
42#ifndef __CEXTRACT__
43#include <sproto.h> 37#include <sproto.h>
44#endif
45#ifndef WIN32 /* ---win32 exclude include files */
46#include <sys/types.h> 38#include <sys/types.h>
47#include <sys/time.h> 39#include <sys/time.h>
48#include <sys/socket.h> 40#include <sys/socket.h>
49#include <netinet/in.h> 41#include <netinet/in.h>
50#include <netdb.h> 42#include <netdb.h>
51#endif /* win32 */
52 43
53#ifdef HAVE_UNISTD_H
54#include <unistd.h> 44#include <unistd.h>
55#endif 45#include <arpa/inet.h>
56 46
57#ifdef HAVE_ARPA_INET_H 47sockvec clients;
58#include <arpa/inet.h>
59#endif
60#include <newserver.h>
61
62Socket_Info socket_info;
63NewSocket *init_sockets;
64 48
65/** 49/**
66 * Initializes a connection. Really, it just sets up the data structure, 50 * Initializes a connection. Really, it just sets up the data structure,
67 * socket setup is handled elsewhere. We do send a version to the 51 * socket setup is handled elsewhere. We do send a version to the
68 * client. 52 * client.
69 */ 53 */
70void InitConnection(NewSocket *ns, const char *from_ip) 54client::client (int fd, const char *peername)
55: fd (fd), host (strdup (peername)),
56 socket_ev (this, &client::socket_cb),
57 cmd_ev (this, &client::cmd_cb)
71{ 58{
72 SockList sl; 59 {
73 char buf[256]; 60 struct linger linger_opt;
61
62 linger_opt.l_onoff = 0;
63 linger_opt.l_linger = 0;
64
65 if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger)))
66 LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno));
67 }
68
69 {
74 int bufsize=65535; /*Supposed absolute upper limit */ 70 int bufsize = 65535; /*Supposed absolute upper limit */
75 int oldbufsize; 71 int oldbufsize;
76 int buflen=sizeof(int); 72 int buflen = sizeof (int);
77 73
78#ifdef WIN32 /* ***WIN32 SOCKET: init win32 non blocking socket */ 74 if (fcntl (fd, F_SETFL, O_NONBLOCK) == -1)
79 int temp = 1; 75 LOG (llevError, "InitConnection: Error on fcntl.\n");
80 76
81 if(ioctlsocket(ns->fd, FIONBIO , &temp) == -1) 77 if (getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen) == -1)
82 LOG(llevError,"InitConnection: Error on ioctlsocket.\n"); 78 oldbufsize = 0;
83#else
84 if (fcntl(ns->fd, F_SETFL, O_NONBLOCK)==-1) {
85 LOG(llevError,"InitConnection: Error on fcntl.\n");
86 }
87#endif /* end win32 */
88 79
89 if (getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen)==-1)
90 oldbufsize=0;
91 if (oldbufsize<bufsize) { 80 if (oldbufsize < bufsize)
92#ifdef ESRV_DEBUG
93 LOG(llevDebug, "Default buffer size was %d bytes, will reset it to %d\n", oldbufsize, bufsize);
94#endif
95 if(setsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&bufsize, sizeof(&bufsize))) { 81 if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &bufsize, sizeof (&bufsize)))
96 LOG(llevError,"InitConnection: setsockopt unable to set output buf size to %d\n", bufsize); 82 LOG (llevError, "InitConnection: setsockopt unable to set output buf size to %d\n", bufsize);
97 }
98 }
99 buflen=sizeof(oldbufsize);
100 getsockopt(ns->fd,SOL_SOCKET,SO_SNDBUF, (char*)&oldbufsize, (socklen_t*) &buflen);
101#ifdef ESRV_DEBUG
102 LOG(llevDebug, "Socket buffer size now %d bytes\n", oldbufsize);
103#endif
104 83
105 ns->faceset = 0; 84 buflen = sizeof (oldbufsize);
106 ns->facecache = 0; 85 getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen);
107 ns->image2 = 0; 86 }
108 ns->sound = 0;
109 ns->exp64 = 0;
110 ns->monitor_spells = 0;
111 ns->mapmode = Map0Cmd;
112 ns->darkness = 1;
113 ns->status = Ns_Add;
114 ns->comment = NULL;
115 ns->old_mode = (Old_Mode) 0;
116 ns->mapx = 11;
117 ns->mapy = 11;
118 ns->newmapcmd= 0;
119 ns->itemcmd = 1; /* Default is version item1 command*/
120 ns->ext_mapinfos=0; /*extendedmapinfo datas*/
121 ns->EMI_smooth=0;
122 ns->look_position = 0;
123 ns->update_look = 0;
124 ns->has_readable_type = 0;
125 ns->supported_readables = 0;
126 ns->monitor_spells = 0;
127 ns->mapinfocmd = 0;
128 ns->extcmd = 0;
129 87
130 /* we should really do some checking here - if total clients overflows 88 mapmode = Map0Cmd;
131 * we need to do something more intelligent, because client id's will start 89 darkness = 1;
132 * duplicating (not likely in normal cases, but malicous attacks that 90 status = Ns_Add;
133 * just open and close connections could get this total up. 91 mapx = 11;
134 */ 92 mapy = 11;
135 ns->inbuf.len=0; 93 itemcmd = 1; /* Default is version item1 command */
136 ns->inbuf.buf= (unsigned char*) malloc( sizeof( unsigned char ) * MAXSOCKBUF );
137 /* Basic initialization. Needed because we do a check in
138 * HandleClient for oldsocketmode without checking the
139 * length of data.
140 */
141 memset( ns->inbuf.buf, 0, sizeof( unsigned char ) * MAXSOCKBUF );
142 memset(&ns->lastmap,0,sizeof(struct Map));
143 memset(ns->faces_sent, 0, ns->faces_sent_len*sizeof(*ns->faces_sent));
144 memset(&ns->anims_sent,0,sizeof(ns->anims_sent));
145 memset(&ns->stats,0,sizeof(struct statsinfo));
146 /* Do this so we don't send a face command for the client for
147 * this face. Face 0 is sent to the client to say clear
148 * face information.
149 */
150 ns->faces_sent[0] = NS_FACESENT_FACE;
151 94
152 ns->outputbuffer.start=0; 95 faces_sent = salloc<uint8> (nrofpixmaps, 0);
153 ns->outputbuffer.len=0;
154 ns->can_write=1;
155 ns->password_fails = 0;
156 96
157 ns->current_map = 0; 97 /* Do this so we don't send a face command for the client for
158 ns->current_x = 0; 98 * this face. Face 0 is sent to the client to say clear
159 ns->current_y = 0; 99 * face information.
100 */
101 faces_sent[0] = NS_FACESENT_FACE;
160 102
161 ns->sent_scroll=0; 103 // socket I/O is low priority
162 ns->host=strdup_local(from_ip); 104 // we prefer to have the server run instead of handling client requests
105 socket_ev.prio (PE_PRIO_NORMAL + 1);
106 socket_ev.fd (fd);
107 socket_ev.poll (PE_R);
108
109 // command handling is even lower priority
110 // that way no client can monopolise the server
111 cmd_ev.prio (PE_PRIO_NORMAL + 2);
112
113 // initialisation done, kick it!
163 sprintf((char*)buf, "version %d %d %s\n", VERSION_CS,VERSION_SC, VERSION_INFO); 114 send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO);
164 sl.buf=(unsigned char*)buf; 115 flush ();
165 sl.len=strlen((char*)buf); 116
166 Send_With_Handling(ns, &sl); 117#if 0//TODO
167#ifdef CS_LOGSTATS 118 socket_info.nconns++;
168 if (socket_info.nconns>cst_tot.max_conn) 119 if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns;
169 cst_tot.max_conn = socket_info.nconns; 120 if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns;
170 if (socket_info.nconns>cst_lst.max_conn)
171 cst_lst.max_conn = socket_info.nconns;
172#endif 121#endif
173} 122}
174 123
124client::~client ()
125{
126 if (pl)
127 pl->socket = 0;
128
129 if (fd >= 0)
130 close (fd);
131
132 free (faces_sent);
133 free (stats.range);
134 free (stats.title);
135 free (host);
136}
137
138void
139client::destroy ()
140{
141 status = Ns_Dead;
142 socket_ev.suspend ();
143 cmd_ev.suspend ();
144}
175 145
176/** This sets up the socket and reads all the image information into memory. */ 146/** This sets up the socket and reads all the image information into memory. */
147void
177void init_ericserver(void) 148init_ericserver (void)
178{ 149{
179 struct sockaddr_in insock; 150 cst_tot.time_start = time (NULL);
180 struct protoent *protox; 151 cst_lst.time_start = time (NULL);
181 struct linger linger_opt;
182 152
183#ifdef WIN32 /* ***win32 - we init a windows socket */ 153 LOG (llevDebug, "Initialize new client/server data\n");
184 WSADATA w;
185 154
186 socket_info.max_filedescriptor = 1; /* used in select, ignored in winsockets */
187 WSAStartup (0x0101,&w); /* this setup all socket stuff */
188 /* ill include no error tests here, winsocket 1.1 should always work */
189 /* except some old win95 versions without tcp/ip stack */
190#else /* non windows */
191
192#ifdef HAVE_SYSCONF
193 socket_info.max_filedescriptor = sysconf(_SC_OPEN_MAX);
194#else
195# ifdef HAVE_GETDTABLESIZE
196 socket_info.max_filedescriptor = getdtablesize();
197# else
198 "Unable to find usable function to get max filedescriptors";
199# endif
200#endif
201#endif /* win32 */
202
203 socket_info.timeout.tv_sec = 0;
204 socket_info.timeout.tv_usec = 0;
205 socket_info.nconns=0;
206
207#ifdef CS_LOGSTATS
208 memset(&cst_tot, 0, sizeof(CS_Stats));
209 memset(&cst_lst, 0, sizeof(CS_Stats));
210 cst_tot.time_start=time(NULL);
211 cst_lst.time_start=time(NULL);
212#endif
213
214 LOG(llevDebug,"Initialize new client/server data\n");
215 socket_info.nconns = 1;
216 init_sockets = (NewSocket *) malloc(sizeof(NewSocket));
217 init_sockets[0].faces_sent = NULL; /* unused */
218 socket_info.allocated_sockets=1;
219
220 protox = getprotobyname("tcp");
221 if (protox==NULL) {
222 LOG(llevError,"init_ericserver: Error getting protox\n");
223 return;
224 }
225 init_sockets[0].fd = socket(PF_INET, SOCK_STREAM, protox->p_proto);
226 if (init_sockets[0].fd == -1) {
227 LOG(llevError, "Cannot create socket: %s\n", strerror_local(errno));
228 exit(-1);
229 }
230 insock.sin_family = AF_INET;
231 insock.sin_port = htons(settings.csport);
232 insock.sin_addr.s_addr = htonl(INADDR_ANY);
233
234 linger_opt.l_onoff = 0;
235 linger_opt.l_linger = 0;
236 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_LINGER,(char *) &linger_opt,
237 sizeof(struct linger))) {
238 LOG(llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror_local(errno));
239 }
240/* Would be nice to have an autoconf check for this. It appears that
241 * these functions are both using the same calling syntax, just one
242 * of them needs extra valus passed.
243 */
244#if defined(__osf__) || defined(hpux) || defined(sgi) || defined(NeXT) || \
245 defined(__sun__) || defined(__linux__) || defined(SVR4) || \
246 defined(__FreeBSD__) || defined(__OpenBSD__) || \
247 defined(WIN32) /* ---win32 add this here */ || \
248 defined(__GNU__) /* HURD */
249 {
250#ifdef WIN32
251 char tmp = 1;
252#else
253 int tmp =1;
254#endif
255
256 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR, &tmp, sizeof(tmp))) {
257 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
258 }
259 }
260#else
261 if(setsockopt(init_sockets[0].fd,SOL_SOCKET,SO_REUSEADDR,(char *)NULL,0)) {
262 LOG(llevError, "Cannot setsockopt(SO_REUSEADDR): %s\n", strerror_local(errno));
263 }
264#endif
265
266 if (bind(init_sockets[0].fd,(struct sockaddr *)&insock,sizeof(insock)) == (-1)) {
267 LOG(llevError, "Cannot bind socket to port %d: %s\n", ntohs(insock.sin_port), strerror_local(errno));
268#ifdef WIN32 /* ***win32: close() -> closesocket() */
269 shutdown(init_sockets[0].fd,SD_BOTH);
270 closesocket(init_sockets[0].fd);
271#else
272 close(init_sockets[0].fd);
273#endif /* win32 */
274 exit(-1);
275 }
276 if (listen(init_sockets[0].fd,5) == (-1)) {
277 LOG(llevError, "Cannot listen on socket: %s\n", strerror_local(errno));
278#ifdef WIN32 /* ***win32: close() -> closesocket() */
279 shutdown(init_sockets[0].fd,SD_BOTH);
280 closesocket(init_sockets[0].fd);
281#else
282 close(init_sockets[0].fd);
283#endif /* win32 */
284 exit(-1);
285 }
286 init_sockets[0].status=Ns_Add;
287 read_client_images(); 155 read_client_images ();
288} 156}
289 157
290 158
291/******************************************************************************* 159/*******************************************************************************
292 * 160 *
293 * Start of functions dealing with freeing of the data. 161 * Start of functions dealing with freeing of the data.
294 * 162 *
295 ******************************************************************************/ 163 ******************************************************************************/
296 164
297/** Free's all the memory that ericserver allocates. */ 165/** Free's all the memory that ericserver allocates. */
166void
298void free_all_newserver(void) 167free_all_newserver (void)
299{
300 LOG(llevDebug,"Freeing all new client/server information.\n");
301 free_socket_images();
302 free(init_sockets);
303}
304
305/**
306 * Frees a socket.
307 * Basically, all we need to do here is free all data structures that
308 * might be associated with the socket. It is up to the caller to
309 * update the list
310 */
311
312void free_newsocket(NewSocket *ns)
313{ 168{
314#ifdef WIN32 /* ***win32: closesocket in windows style */ 169 LOG (llevDebug, "Freeing all new client/server information.\n");
315 shutdown(ns->fd,SD_BOTH); 170 free_socket_images ();
316 if (closesocket(ns->fd)) {
317#else
318 if (close(ns->fd)) {
319#endif /* win32 */
320
321#ifdef ESRV_DEBUG
322 LOG(llevDebug,"Error closing socket %d\n", ns->fd);
323#endif
324 }
325 if (ns->stats.range)
326 free(ns->stats.range);
327 if (ns->stats.title)
328 free(ns->stats.title);
329 if (ns->comment)
330 free(ns->comment);
331 free(ns->host);
332 free(ns->inbuf.buf);
333} 171}
334 172
335/** Sends the 'goodbye' command to the player, and closes connection. */ 173/** Sends the 'goodbye' command to the player, and closes connection. */
174void
336void final_free_player(player *pl) 175final_free_player (player *pl)
337{ 176{
338 cs_write_string(&pl->socket, "goodbye", 8);
339 free_newsocket(&pl->socket);
340 free_player(pl); 177 free_player (pl);
341} 178}
342 179
180bool
181add_client (int fd, const char *peername)
182{
183 if (checkbanned (NULL, peername))
184 {
185 LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername);
186 return false;
187 }
188 else
189 {
190 client *ns = new client (dup (fd), peername);
191 clients.push_back (ns);
192 return true;
193 }
194}
195

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines